A low affinity fluorescent calcium indicator; a difluorinated derivative of fura-2; has negligible magnesium sensitivity

Fura-FF (potassium salt) – 50 µg

Brand:
Cayman
CAS:
192140-58-2
Storage:
-20
UN-No:
Non-Hazardous - /

Fura-FF is a difluorinated derivative of the calcium indicator fura-2 (Item Nos. 19531 | 20414). Unlike, fura-2, fura-FF has negligible magnesium sensitivity, thus reducing interference from this cation.{38261} Fura-FF also has a higher calcium dissociation constant than fura-2 (Kd(calcium) = 6 and 0.14 µM, respectively).{38261,23059} However, the spectral properties of fura-FF and fura-2 are similar with fura-FF displaying excitation/emission spectra of 365/514 nm in the absence of calcium, with a shift to 339/507 nm in the presence of a high calcium concentration.{38262} Low affinity calcium dyes, including fura-FF, are preferred for studying compartments with high concentrations of calcium, such as mitochondria, or in cell systems that have relatively low calcium buffering capacities, such as neuronal dendrites and spines.{31952,31953,31954}  

 

Available on backorder

Add to quotes
SKU: 20415 - Category:

Description

A low affinity fluorescent calcium indicator; a difluorinated derivative of fura-2; has negligible magnesium sensitivity, unlike fura-2; has a higher calcium dissociation constant than fura-2; ex/em = 365/514, respectively, in the absence of calcium; ex/em = 339/507 in the presence of a high calcium concentration,

Formal name: 2-[6-[bis(carboxymethyl)amino]-5-[2-[6-[bis(carboxymethyl)amino]-2,3-difluorophenoxy]ethoxy]-2-benzofuranyl]-5-oxazolecarboxylic acid, pentapotassium salt

Synonyms: 

Molecular weight: 853.9

CAS: 192140-58-2

Purity: ≥90%

Formulation: A solid

Application|Fluorescence||Product Type|Biochemicals|Labeling & Detection|Dyes, Stains, & Indicators||Product Type|Biochemicals|Labeling & Detection|Fluorescent Probes||Research Area|Cell Biology|Cell Signaling|Calcium Mobilization||Research Area|Cell Biology|Mitochondrial Biology

Related products

  • CAY10512 is a substituted trans-stilbene analog of resveratrol that is 100-fold more potent as measured by antioxidant activity. The IC50 value for inhibition of TNFα-induced activation of NF-κB by CAY10512 is 0.15 µM compared to 20 µM by resveratrol.{14545}

    CAY10512 – 100 mg

    The nuclear factor-κB (NF-κB) regulates the expression of numerous genes involved in immunity and inflammation, cellular stress responses, growth, and apoptosis. Resveratrol, a polyphenolic trans-stilbene, is a known inhibitor of the activation of NF-κB and exhibits activity against a wide variety of cancer cells. CAY10512 is a substituted trans-stilbene analog of resveratrol that is 100-fold more potent as measured by antioxidant activity. The IC50 value for inhibition of TNFα-induced activation of NF-κB by CAY10512 is 0.15 µM compared to 20 µM by resveratrol.{14545}  

     

    Brand:
    Cayman
    SKU:10009536 - 100 mg

    Available on backorder

    Add to quotes
    Add to quotes
    View product page
  • A powerful effector in both the TetR and revTetR transcriptional regulator systems

    Anhydrotetracycline (hydrochloride) – 500 mg

    The tetracycline repressor (TetR) is a transcriptional regulator which normally binds tightly to its palindromic tetO operator DNA, blocking gene expression.{17508} Tet causes the repressor to dissociate from the DNA, allowing transcription to occur. A novel reverse TetR (revTetR) requires tetracycline as a co-repressor to bind tetO and block transcription.{17509,17510} Anhydrotetracycline (hydrochloride) is a powerful effector in both the tetracycline repressor (TetR) and reverse TetR (revTetR) systems, binding the Tet repressor 35-fold more strongly than Tet.{17508,17511} Moreover, anhydrotetracycline poorly binds the 30S ribosomal subunit, compared to Tet,{17512} so it does not act as a general inhibitor of translation and is a poor antibiotic. Perhaps related to this, the concentration of anhydrotetracycline that inhibits eukaryotic cell growth is more than a 1,000-fold above the dose that alters transcription through TetR.{17508}  

     

    Brand:
    Cayman
    SKU:10009542 - 500 mg

    Available on backorder

    Add to quotes
    Add to quotes
    View product page
  • A zwitterionic glycerophospholipid commonly used in the formation of lipid monolayers

    1,2-Dipalmitoyl-sn-glycero-3-PC – 100 mg

    1,2-Dipalmitoyl-sn-glycero-3-PC (DPPC) is a zwitterionic glycerophospholipid commonly used in the formation of lipid monolayers, bilayers, and liposomes for use in a variety of applications.{14480,24261,14478,14479} It has been used in the formation of proteoliposomes for implantation of γ-glutamyl transpeptidase into human erythrocyte membranes.{14478} Incorporation of glycosphingolipid antigens into DPPC-containing liposomes increases the immunogenicity of the antigens in mice.{14479}  

     

    Brand:
    Cayman
    SKU:10009473 - 100 mg

    Available on backorder

    Add to quotes
    Add to quotes
    View product page
  • PtdIns-(3

    PtdIns-(3,4,5)-P3-biotin (sodium salt) – 100 µg

    The PtdIn phosphates play an important role in the generation and transduction of intracellular signals.{8344,4096,14518} PtdIns-(3,4,5)-P3-biotin is an affinity probe which allows the PIP3 to be detected through an interaction with the biotin ligand. This design allows PtdIns-(3,4,5)-P3-biotin to serve as a general probe for any protein with a high affinity binding interaction with inositol-(3,4,5)-triphosphate phospholipids, such as phosphatidylinositol 3-kinase, PTEN, or PH-domain-containing proteins.  

     

    Brand:
    Cayman
    SKU:10009531 - 100 µg

    Available on backorder

    Add to quotes
    Add to quotes
    View product page